Re: signal_enter_notify_event() does nothing

[Luca Cappa <luca cappa i-medlab com>]

HeavyJoost wrote:
> I want a function to be called when the mouse goes over a button, I use 
> the following line:
>
> toolUndo->signal_enter_notify_event().connect(sigc::mem_fun(*this,&MainWindow::nothingExec)); 
>
>
> where nothing exec is:
>
> bool MainWindow::nothingExec(GdkEventCrossing* event){
>   std::cout << "nothing to do" << std::endl;
>   return false;
> }



I think you could add mouse related events to the button, like adding in 
its ctor (or just after it was created):

add_events (Gdk::POINTER_MOTION_MASK | Gdk::ENTER_NOTIFY_MASK );


See you